Window ventilating device



Patented May 30, 18499.

No. 625,89l.

V J. A. MAUL. WINDOW VEN TILATING DEVICE.

(Application filed Feb. 23, 1898.)

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NITED STATES PATENT OFFICE.

JOHN A. MAUL, OF MINNEAPOLIS, MINNESOTA.

WINDOW VENTILATING DEVICE.

SPECIFICATION forming part of Letters Patent No. 625,891, dated May 30,1899. I Application filed February 23, 1898. S rial NO- 671,223. (Nomodel.)

To rrZZ whom it 777/61,]! concern.-

Be it known that I, JOHN A. MAUL, a citizen of the United States,residing at Minneapolis, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements in WindowVentilating Devices; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention has for its object to provide an improved ventilating-framewhich when placed in the opening of a partially-opened window willafford ventilation, but will prevent rain from entering through the sameduring a storm or shower.

To the ends above noted my invention consists of the novel devices andcombinations of devices hereinafter described and defined in the claims.

The preferred form of my invention is illustrated in the accompanyingdrawings, wherein like characters indicate like parts throughout theseveral views.

Figure 1 is a perspective view of the ventilating-frame removed fromworking position. Fig. 2 is an inside elevation,with some parts brokenaway, showingthe ventilatingframe in working position in apartiallyopened window; and Fig. 3 is a vertical sec- V tion taken onthe line 00 x of Fig. 2.

a indicates the window-frame, having the sill a and the window-strips a1 indicates the oblong rectangular frame of the ventilator, which, asshown, is provided with vertical partitions 2. A long plate 3,preferably of tin or sheet-iron, is secured across the lower portion ofthe innerside of the frame 1, and in a similar manner a plate 4, alsopreferably of tin or sheet-iron, is secured across the upper portion ofthe outer side of said frame 1. The said plates 3 and 4t overlap eachother to a considerable extent, but are of course spaced apart by theframe 1, so that a vertical air-channel is formed between the same. Theupper edge of the plate 3 is turned downward at an acute angle to thebody, as shown at 5, this portion 5 being preferably fitted into notchesor seats 6, formed in the partitions 2. This downturned flange 5 willserve to cut off or intercept water 'which may be blown or splashedupward against the plate 3. 'As shown and preferred, the plate 4 isprovided with a horizontallyturned portion 7, that extends across thetopof the frame 1 and terminates in an upturned flange 8, that stands invertical line with the inner plate 3 for a purpose which will presentlyappear.

At one end the ventilating-frame is provided with alongitudinally-movable slide or extension-plate 9, that works in keepers10, secured on the inner face of the frame 1. At its other end the frame1 is provided with a fixed flange or web 11.

7) indicates the movable window-sash.

The device is placed in working position by setting the lower edge ofthe frame 1 on the bottom of the window-sill against and just outward ofthe sill a and with the vertical flange or ledge 11 projected back ofthe window-strip a which is on that side of the window. The adjustableslide or plate 9 should then be extended back of the windowstrip a whichis onthat side of the window,and then when the window-sash b is loweredonto the frame 1, with the upturned flange 8 engaging its inner loweredge, the device is secured in position. If desired, the passage throughthe ventilating-frame maybe covered at some suitable point with a wirescreen or mosquitonetting.

This device will serve to effectually exclude rain and will aiford goodventilation. It will of course be understood that alterations in thespecific details of construction above described may be made withoutdeparting from the spirit of my invention.

Simplicity and cheapness of construction are important features securedin my invention above described.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is as follows:

1. A window ventilating device, comprising the rectangular frame 1, andthe overlapping vertical baffle-plates 3 and 4, spaced apart laterallyand secured to said frame 1 in such positions that the baffle-plate 4 isdirectly exposed to the weather, or exterior of the room, and thehalide-plate 3 is directly exposed to the interior of the room, and thesaid plate 3 having the downtnrned flange 5 atits I upturned flange S,which parts 7 and 8 enupper edge, for preventing splashing of rain gageand interlock with the Window-sash, to into the room, substantially asdescribed. hold said frame in position, substantially-as 2. A Windowventilating device, comprisdescribed. 5 ing the rectangular frame 1,constructed to In testimony whereof I aflix my signature I5 fit into anopen Window, the inner baffle-plate in presence of two Witnesses.

3 secured to said frame, and provided with JOHN A. MAUL. the downturnedflange 5, and the outer baffle- Witnesses: plate 4 having formedintegrally therewith LILLIAN O. ELMORE,

10 the horizontal section 7, terminating in the F. D. MERCHANT.

